[Flutter] Error (Xcode): DT_TOOLCHAIN_DIR cannot be used to evaluate LIBRARY_SEARCH_PATHS, use TOOLCHAIN_DIR instead

ios/Podfile 수정

 

변경 전

...
post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
  end
end

 

변경 후

...
post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
  end
  installer.aggregate_targets.each do |target|
      target.xcconfigs.each do |variant, xcconfig|
        xcconfig_path = target.client_root + target.xcconfig_relative_path(variant)
        IO.write(xcconfig_path, IO.read(xcconfig_path).gsub("DT_TOOLCHAIN_DIR", "TOOLCHAIN_DIR"))
      end
    end
    installer.pods_project.targets.each do |target|
      target.build_configurations.each do |config|
        if config.base_configuration_reference.is_a? Xcodeproj::Project::Object::PBXFileReference
          xcconfig_path = config.base_configuration_reference.real_path
          IO.write(xcconfig_path, IO.read(xcconfig_path).gsub("DT_TOOLCHAIN_DIR", "TOOLCHAIN_DIR"))
        end
      end
    end
end